Coffee machine



FIG. 1 is a perspective view of the coffee machine of the invention;

FIG. 2 is a front view of the coffee machine illustrated in FIG. 1;

FIG. 3 is a rear view of the coffee machine illustrated in FIG. 1;

FIG. 4 is a first side view of the coffee machine illustrated in FIG. 1;

FIG. 5 is a second side view of the coffee machine illustrated in FIG.1; and,

FIG. 6 is a top view of the coffee machine illustrated in FIG. 1.

The ornamental design for a coffee machine, as shown and described.